<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>购物车</title>
<%--<base href="http://localhost:8080/BookStore02/">--%>
	<%--	静态包含，base标签，css样式，jquery--%>
	<%@include file="/pages/common/head.jsp"%>
	<script type="text/javascript">
		$(function () {
			$(".deleteItem").click(function () {
				//confirm是确认提示框
				//返回true，确定，返回false 取消
				return confirm("确定删除【" + $(this).parent().parent().find("td:first").text() +"】吗？");
			});

			$(".clearItem").click(function () {
				//confirm是确认提示框
				//返回true，确定，返回false 取消
				return confirm("确定清空购物车吗？");
			});

			//blur 失去焦点事件 change，内容发生变化则触发
			$(".updateCount").change(function () {

				let name = $(this).parent().parent().find("td:first").text();
				let newValue = this.value;
				let id = $(this).attr("bookId");
				if (confirm("你确定要将【"+ name +"】商品数量修改为："+ newValue + "吗？")){
					//发送请求给服务器，修改
					location.href = "http://localhost:8080/07_book/cartServlet?action=updateCount&id=" + id +"&count=" + newValue;
				}else {
					this.value = this.defaultValue; //defaultValue表单项 dom对象的属性，表示默认的value值
				}
			})
		})
	</script>
</head>
<body>
	
	<div id="header">
			<img class="logo_img" alt="" src="static/img/logo.gif" >
			<span class="wel_word">购物车</span>
		<%@include file="/pages/common/login_success_menu.jsp"%>
	</div>
	
	<div id="main">
	
		<table>
			<c:if test="${empty sessionScope.cart.items}">
				<tr>
					<td></td>
					<td></td>
					<td></td>
					<td></td>
					<td></td>
				</tr>
				<tr>
					<td colspan="5"><a href="index.jsp" style="color: red">亲,购物车是空的！快去浏览商品吧！！</a></td>
				</tr>
			</c:if>
			<c:if test="${not empty sessionScope.cart.items}">

			<tr>
				<td>商品名称</td>
				<td>数量</td>
				<td>单价</td>
				<td>金额</td>
				<td>操作</td>
			</tr>
			<c:forEach items="${sessionScope.cart.items}" var="entry">
			<tr>
				<td>${entry.value.name}</td>
				<td>
					<input class="updateCount" type="text" bookId="${entry.value.id}"
						   style="width: 50px;text-align: center" value="${entry.value.count}">
				</td>
				<td>${entry.value.price}</td>
				<td>${entry.value.totalPrice}</td>
				<td><a class="deleteItem" href="cartServlet?action=deleteItem&id=${entry.value.id}">删除</a></td>
			</tr>
			</c:forEach>
			</c:if>
			
		</table>
		
		<c:if test="${not empty sessionScope.cart.items}">
		<div class="cart_info">
			<span class="cart_span">购物车中共有<span class="b_count">${sessionScope.cart.totalCount}</span>件商品</span>
			<span class="cart_span">总金额<span class="b_price">${sessionScope.cart.totalPrice}</span>元</span>
			<span class="cart_span"><a class="clearItem" href="cartServlet?action=clear">清空购物车</a></span>
			<span class="cart_span"><a href="orderServlet?action=createOrder">去结账</a></span>
		</div>
		</c:if>
	</div>

	<%--		静态包含，页脚内容--%>
	<%@include file="/pages/common/footer.jsp"%>
</body>
</html>